Can vector.back() be used to assign a value to the last element of a vector?

Question

I have some code that needs to assign the first and last elements of a vector as a special case.

Is somevector.back() an lvalue? Will the following code work?

some_vector.front()=first_value;
some_vector.back()=last_value;

Answer 1

Yes it can, as it returns a reference to the last element. Better make sure it's not empty first!